Wiha Tools USA - selling Wiha made hand tools in the United States since 1985
TORX SCREW SIZE CHART
Screw Size Torx Socket Set Screw

Torx Socket Cap Screw

Torx Pan Head Screw Torx Flat Head Screw Torx Fillister HeadScrew Torx Truss Head Screw Torx Oval Head Screw Torx Hex Head Screw Torx Internal Washer Head Screw
#2 T3 - T7 T6 - - - - T7
#3 T5 - T8 T7 - - - - T8
#4 T6 T10 T9 T8 T9 - - T9 T9
#5 T7 T10 T10 T9 T10 - T10 T10 T10
#6 T7 T15 T15 T10 T15 T10 T15 T15 T15
#8 T8 T25 T20 T15 T20 T15 T20 T20 T20
#10 T10 T27 T25 T20 T25 T20 T25 T25 T25
#12 T10 T27 T27 T25 T27 T25 T27 T27 T27
1/4 T20 T30 T30 T27 T30 T27 T30 T30 T30
5/16 T27 T45 - T40 T40 T30 T40 T40 -
3/8 T30 T50 T45 T40 T45 T40 T45 T45 -
7/16 T40 T55 T50 T50 T50 T45 T50 - -
1/2 T45 T55 T55 T55 T55 T50 T50 - -